src/com/vaadin/event/dd/acceptcriteria/Or.java


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51

/*
@VaadinApache2LicenseForJavaFiles@
 */
/**
 * 
 */
package com.vaadin.event.dd.acceptcriteria;

import com.vaadin.event.dd.DragAndDropEvent;
import com.vaadin.terminal.PaintException;
import com.vaadin.terminal.PaintTarget;

/**
 * A compound criterion that accepts the drag if any of its criterion accepts
 * it.
 * 
 * @see And
 * 
 * @since 6.3
 * 
 */
public class Or extends ClientSideCriterion {
    private static final long serialVersionUID = 1L;
    private AcceptCriterion criteria[];

    /**
     * @param criteria
     *            the criteria of which the Or criteria will be composed
     */
    public Or(ClientSideCriterion... criteria) {
        this.criteria = criteria;
    }

    @Override
    public void paintContent(PaintTarget target) throws PaintException {
        super.paintContent(target);
        for (AcceptCriterion crit : criteria) {
            crit.paint(target);
        }
    }

    public boolean accept(DragAndDropEvent dragEvent) {
        for (AcceptCriterion crit : criteria) {
            if (crit.accept(dragEvent)) {
                return true;
            }
        }
        return false;
    }

}